Record Owner in form rule

within my Quickbase knowledge , using dynamic rule you can't . Instead of  that there is  Quickbase developer Api which can be  used

Steps:
Load a  script into the table using image onload technique

Code Sample:

  var changeRecordOwner= $.get(gDBID,{   act: "API_ChangeRecordOwner",   rid: QBU_rid,   newowner: "xxx@sss.com",    });   

I think this will solve your problem_
You can reach for any help on mmjohnthomas@gmail.com